The SHIMANO STEPS SM-CDE70 is the reference chain guide for electric mountain bikes equipped with E7000 and E8000 motors. Specifically designed for the demands of E-MTB, this chain retention system guarantees maximum security on rough terrain, eliminating any risk of derailment even in the most technical sections.

E-MTB Performance Without Compromise

Developed by Shimano to meet the requirements of the most committed E-MTB riders, the SM-CDE70 ensures optimal chain retention on the chainring, even under high motor power and in the most chaotic passages. Its design incorporates a robust steel mounting plate and a reinforced resin guide that combines lightness, strength and silent operation.

Compatibility and Technical Versatility

• Motor compatibility: Designed for Shimano STEPS E7000 and E8000 motor units, direct mounting on the motor bracket without removing the crankset
• Chainlines: Compatible with 50 mm and 53 mm (Boost) standards, adapting to modern electric mountain bike configurations
• Compatible chainrings: Version for 34 to 38 tooth chainrings (36T variant available separately)
• Drivetrains: Works with 9, 10, 11 and 12-speed chains, offering total flexibility for all Shimano groupsets
• Travel: Supports up to 170 mm of rear travel, ideal for the most radical enduro and all-mountain frames
• Wide cassettes: Sufficient clearance for 10-51 tooth cassettes of modern Shimano drivetrains

Technical Design and Materials

• Reinforced resin guide: Composite material offering an excellent compromise between impact resistance, lightness and silent chain operation
• Steel mounting plate: Ensures maximum rigidity and solid attachment to the motor unit, resisting the intense mechanical stresses of E-MTB
• Optimized weight: Approximately 44 grams for the complete assembly (guide + plate), a featherweight for this type of equipment
• Simplified installation: Mounting without removing the cranks, height adjustment facilitated by accessible fixing screw

STEPS System Integration

The SM-CDE70 is part of the Shimano STEPS ecosystem, guaranteeing perfect compatibility with all components in the E-MTB range. The compact design and matte black finish allow discreet integration into the overall aesthetics of the bike. The optimized shape of the guide prevents mud accumulation and facilitates cleaning after rides in difficult conditions.

Available Variants

• 34T/38T version: EAN 4524667393801 / Ref. ESMCDE70 (product described here)
• 36T version: Also referenced SM-CDE70, with adapted mounting plate (different EAN, available separately)

Each version uses a specific rear plate according to the number of chainring teeth, ensuring perfect alignment and optimal operation of the chain retention system.